﻿using System;
using System.Data;
using System.Text;
using System.Data.SqlClient;
using Maticsoft.DBUtility;//Please add references
namespace lcs.DAL
{
	/// <summary>
	/// 数据访问类:roles
	/// </summary>
	public partial class roles
	{
		public roles()
		{}
		#region  BasicMethod

		/// <summary>
		/// 得到最大ID
		/// </summary>
		public int GetMaxId()
		{
		return DbHelperSQL.GetMaxID("roles_id", "roles"); 
		}

		/// <summary>
		/// 是否存在该记录
		/// </summary>
		public bool Exists(int roles_id)
		{
			StringBuilder strSql=new StringBuilder();
			strSql.Append("select count(1) from roles");
			strSql.Append(" where roles_id=@roles_id");
			SqlParameter[] parameters = {
					new SqlParameter("@roles_id", SqlDbType.Int,4)
			};
			parameters[0].Value = roles_id;

			return DbHelperSQL.Exists(strSql.ToString(),parameters);
		}


		/// <summary>
		/// 增加一条数据
		/// </summary>
		public int Add(lcs.Model.roles model)
		{
			StringBuilder strSql=new StringBuilder();
			strSql.Append("insert into roles(");
			strSql.Append("roles_name,roles_descripition)");
			strSql.Append(" values (");
			strSql.Append("@roles_name,@roles_descripition)");
			strSql.Append(";select @@IDENTITY");
			SqlParameter[] parameters = {
					new SqlParameter("@roles_name", SqlDbType.VarChar,30),
					new SqlParameter("@roles_descripition", SqlDbType.VarChar,300)};
			parameters[0].Value = model.roles_name;
			parameters[1].Value = model.roles_descripition;

			object obj = DbHelperSQL.GetSingle(strSql.ToString(),parameters);
			if (obj == null)
			{
				return 0;
			}
			else
			{
				return Convert.ToInt32(obj);
			}
		}
		/// <summary>
		/// 更新一条数据
		/// </summary>
		public bool Update(lcs.Model.roles model)
		{
			StringBuilder strSql=new StringBuilder();
			strSql.Append("update roles set ");
			strSql.Append("roles_name=@roles_name,");
			strSql.Append("roles_descripition=@roles_descripition");
			strSql.Append(" where roles_id=@roles_id");
			SqlParameter[] parameters = {
					new SqlParameter("@roles_name", SqlDbType.VarChar,30),
					new SqlParameter("@roles_descripition", SqlDbType.VarChar,300),
					new SqlParameter("@roles_id", SqlDbType.Int,4)};
			parameters[0].Value = model.roles_name;
			parameters[1].Value = model.roles_descripition;
			parameters[2].Value = model.roles_id;

			int rows=DbHelperSQL.ExecuteSql(strSql.ToString(),parameters);
			if (rows > 0)
			{
				return true;
			}
			else
			{
				return false;
			}
		}

		/// <summary>
		/// 删除一条数据
		/// </summary>
		public bool Delete(int roles_id)
		{
			
			StringBuilder strSql=new StringBuilder();
			strSql.Append("delete from roles ");
			strSql.Append(" where roles_id=@roles_id");
			SqlParameter[] parameters = {
					new SqlParameter("@roles_id", SqlDbType.Int,4)
			};
			parameters[0].Value = roles_id;

			int rows=DbHelperSQL.ExecuteSql(strSql.ToString(),parameters);
			if (rows > 0)
			{
				return true;
			}
			else
			{
				return false;
			}
		}
		/// <summary>
		/// 批量删除数据
		/// </summary>
		public bool DeleteList(string roles_idlist )
		{
			StringBuilder strSql=new StringBuilder();
			strSql.Append("delete from roles ");
			strSql.Append(" where roles_id in ("+roles_idlist + ")  ");
			int rows=DbHelperSQL.ExecuteSql(strSql.ToString());
			if (rows > 0)
			{
				return true;
			}
			else
			{
				return false;
			}
		}


		/// <summary>
		/// 得到一个对象实体
		/// </summary>
		public lcs.Model.roles GetModel(int roles_id)
		{
			
			StringBuilder strSql=new StringBuilder();
			strSql.Append("select  top 1 roles_id,roles_name,roles_descripition from roles ");
			strSql.Append(" where roles_id=@roles_id");
			SqlParameter[] parameters = {
					new SqlParameter("@roles_id", SqlDbType.Int,4)
			};
			parameters[0].Value = roles_id;

			lcs.Model.roles model=new lcs.Model.roles();
			DataSet ds=DbHelperSQL.Query(strSql.ToString(),parameters);
			if(ds.Tables[0].Rows.Count>0)
			{
				return DataRowToModel(ds.Tables[0].Rows[0]);
			}
			else
			{
				return null;
			}
		}


		/// <summary>
		/// 得到一个对象实体
		/// </summary>
		public lcs.Model.roles DataRowToModel(DataRow row)
		{
			lcs.Model.roles model=new lcs.Model.roles();
			if (row != null)
			{
				if(row["roles_id"]!=null && row["roles_id"].ToString()!="")
				{
					model.roles_id=int.Parse(row["roles_id"].ToString());
				}
				if(row["roles_name"]!=null)
				{
					model.roles_name=row["roles_name"].ToString();
				}
				if(row["roles_descripition"]!=null)
				{
					model.roles_descripition=row["roles_descripition"].ToString();
				}
			}
			return model;
		}

		/// <summary>
		/// 获得数据列表
		/// </summary>
		public DataSet GetList(string strWhere)
		{
			StringBuilder strSql=new StringBuilder();
			strSql.Append("select roles_id,roles_name,roles_descripition ");
			strSql.Append(" FROM roles ");
			if(strWhere.Trim()!="")
			{
				strSql.Append(" where "+strWhere);
			}
			return DbHelperSQL.Query(strSql.ToString());
		}

		/// <summary>
		/// 获得前几行数据
		/// </summary>
		public DataSet GetList(int Top,string strWhere,string filedOrder)
		{
			StringBuilder strSql=new StringBuilder();
			strSql.Append("select ");
			if(Top>0)
			{
				strSql.Append(" top "+Top.ToString());
			}
			strSql.Append(" roles_id,roles_name,roles_descripition ");
			strSql.Append(" FROM roles ");
			if(strWhere.Trim()!="")
			{
				strSql.Append(" where "+strWhere);
			}
			strSql.Append(" order by " + filedOrder);
			return DbHelperSQL.Query(strSql.ToString());
		}

		/// <summary>
		/// 获取记录总数
		/// </summary>
		public int GetRecordCount(string strWhere)
		{
			StringBuilder strSql=new StringBuilder();
			strSql.Append("select count(1) FROM roles ");
			if(strWhere.Trim()!="")
			{
				strSql.Append(" where "+strWhere);
			}
			object obj = DbHelperSQL.GetSingle(strSql.ToString());
			if (obj == null)
			{
				return 0;
			}
			else
			{
				return Convert.ToInt32(obj);
			}
		}
		/// <summary>
		/// 分页获取数据列表
		/// </summary>
		public DataSet GetListByPage(string strWhere, string orderby, int startIndex, int endIndex)
		{
			StringBuilder strSql=new StringBuilder();
			strSql.Append("SELECT * FROM ( ");
			strSql.Append(" SELECT ROW_NUMBER() OVER (");
			if (!string.IsNullOrEmpty(orderby.Trim()))
			{
				strSql.Append("order by T." + orderby );
			}
			else
			{
				strSql.Append("order by T.roles_id desc");
			}
			strSql.Append(")AS Row, T.*  from roles T ");
			if (!string.IsNullOrEmpty(strWhere.Trim()))
			{
				strSql.Append(" WHERE " + strWhere);
			}
			strSql.Append(" ) TT");
			strSql.AppendFormat(" WHERE TT.Row between {0} and {1}", startIndex, endIndex);
			return DbHelperSQL.Query(strSql.ToString());
		}

		/*
		/// <summary>
		/// 分页获取数据列表
		/// </summary>
		public DataSet GetList(int PageSize,int PageIndex,string strWhere)
		{
			SqlParameter[] parameters = {
					new SqlParameter("@tblName", SqlDbType.VarChar, 255),
					new SqlParameter("@fldName", SqlDbType.VarChar, 255),
					new SqlParameter("@PageSize", SqlDbType.Int),
					new SqlParameter("@PageIndex", SqlDbType.Int),
					new SqlParameter("@IsReCount", SqlDbType.Bit),
					new SqlParameter("@OrderType", SqlDbType.Bit),
					new SqlParameter("@strWhere", SqlDbType.VarChar,1000),
					};
			parameters[0].Value = "roles";
			parameters[1].Value = "roles_id";
			parameters[2].Value = PageSize;
			parameters[3].Value = PageIndex;
			parameters[4].Value = 0;
			parameters[5].Value = 0;
			parameters[6].Value = strWhere;	
			return DbHelperSQL.RunProcedure("UP_GetRecordByPage",parameters,"ds");
		}*/

		#endregion  BasicMethod
		#region  ExtensionMethod

		#endregion  ExtensionMethod
	}
}

